Bachi, Roberto, 1909-1995 Graphical rational patterns : a new approach to graphical presentation of statistics / by Roberto Bachi. - Jerusalem, Israel Universities Press, c1968. - xvii, 243 p. : ill. ,maps, (some col.) ; 25 cm Includes bibliographical references and index. LCCN: he 68002050 Subjects--Topical Terms: Statistics--Graphic methods. LC Class. No.: HA31 / .B25 1968